Design of train preassembly flexible experimental platform manipulator

LI Ying1, ZHOU Yongjie1, GUO Dongmei1, WANG Qilong2, YUN Chao2

(1. CRRC TangShan Co, Tangshan 063000, China; 2.School of Mechanical Engineering and
Automation, Beihang University, Beijing 100191, China)

Abstract: Aiming at the problems of the train preassembly experimental platform with high cost of manufacture low reusable rate and poor precision of location, the characteristics of continuous surface discretization method and the flexible clamping technology was investigated. After the analysis of the assembly requirement and the structure characteristics of the assembly object, a positioning method of the train that as research object of preassembly experimental platform was proposed. An automation and lowcost manipulator of train preassembly flexible experiment platform was designed. Through the finite element analysis tool, the mechanical strength of key parts was tested. The optimized structure of the manipulator was established .The feasibility of the positioning method and the assembly effect of the experimental platform were proved by using train assembly machine. The results indicate that the digital flexible assembly technology can reduce the cost and improve the efficiency of experiment platform, it can promote the level of the assembly of the train.

Key words: preassembly manipulator; flexible assembly; finite element analysis